CN216793346U

CN216793346U - Anti-aging cable for building

Info

Publication number: CN216793346U
Application number: CN202123153026.4U
Authority: CN
Inventors: 张军虎; 赵佩佩; 董文新; 吕益品
Original assignee: Jiangsu Xinchangfeng Cable Co ltd
Current assignee: Jiangsu Xinchangfeng Cable Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-21
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to an anti-aging cable for buildings, which comprises a cable body, wherein the cable body comprises four cable cores, an inner sheath, a shielding layer, a waterproof layer, a pressure-resistant layer, a wear-resistant layer and an outer sheath, the inner sheath, the shielding layer, the waterproof layer, the pressure-resistant layer, the wear-resistant layer and the outer sheath are sequentially coated on the outer sides of the four cable cores from inside to outside, a supporting framework is further arranged on the inner side of the inner sheath, the supporting framework comprises two streamline-shaped separating sheets which are arranged in a cross mode, the four cable cores are correspondingly arranged in four cavities defined by the supporting framework and the inner sheath one by one, two symmetrical untwisting strips are axially arranged on the cable body in an extending mode, and the cross section structures of the untwisting strips are of a convex structure. The anti-aging cable for the building is mainly used for providing the anti-aging cable for the building, which is stable and reliable in integral cable structure, remarkable in compression resistance and torsion resistance, and meanwhile has anti-interference, fire resistance and aging resistance.

Description

Anti-aging cable for building

Technical Field

The utility model relates to a cable, in particular to an anti-aging cable for a building.

Background

The application of the cable in daily production and life is quite popular, and the cable is in various types, including power cables, control cables, high-temperature cables, computer cables, signal cables, aluminum alloy cables and the like. They are composed of single or multiple wire and insulating layer for connecting circuits, electric appliances, etc. The environment of some use occasions is complex and changeable, and frequent movement, bending and twisting of the cable are needed, like a cable for a building, so that the cable not only needs to have good pressure resistance, but also needs to have good torsion resistance and ageing resistance at the same time, and the service life of the cable is not affected.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the anti-aging cable for the building, which has the advantages of stable and reliable integral cable structure, obvious compression resistance and torsion resistance, and simultaneously has anti-interference, fire resistance and aging resistance.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides an ageing resistance cable for building, includes the cable body, the cable body includes four cable cores and from interior to exterior in proper order the cladding is at inner sheath, shielding layer, waterproof layer, compressive layer, wearing layer and the oversheath in the four cable core outsides, the inner sheath inboard still is equipped with supporting framework, supporting framework includes the streamlined division card of two cross settings, four the cable core one-to-one is placed in four cavities that supporting framework and inner sheath enclose, it is provided with the strip of back-twist of two symmetries to go up along axial extension on the cable body, the cross sectional structure of back-twist strip is type structure.

Furthermore, the division plate is of an S-shaped structure, and two ends of the division plate are respectively abutted against the inner sheath.

Furthermore, the wide end of the convex structure of the back-twist strip is positioned at one side close to the cable core, and the outer surface of the narrow end of the back-twist strip and the outer surface of the outer sheath are positioned at the same cambered surface.

Further, the untwisting strips are elastic silica gel strips.

Furthermore, the anti-pressure layer includes integrated into one piece's interior resistance to compression ring, outer resistance to compression ring and connects including resistance to compression ring and the outer buffer body of a plurality of interval distribution between the resistance to compression ring, interior resistance to compression ring and the coaxial setting of outer resistance to compression ring, the cross section structure of buffer body is eight style of calligraphy structures, and the narrow end and the outer resistance to compression ring of this eight style of calligraphy structures are connected, and the wide end and the interior resistance to compression ring of this eight style of calligraphy structures are connected.

Further, the inner sheath and the outer sheath are both made of a composite material of silicone and glass fibers.

Further, the shielding layer is formed by weaving aluminum alloy wires.

Further, a flame retardant layer made of polyethylene is arranged between the shielding layer and the waterproof layer.

Furthermore, the waterproof layer is composed of a water-blocking tape wrapped on the outer side of the flame-retardant layer and an aluminum-plastic tape wrapped on the outer side of the water-blocking tape.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the cross-shaped streamline support framework is matched with the skillfully designed compression-resistant layer structure, so that the compression resistance of the cable body can be greatly improved; the torsion resistance of the cable body can be improved by the back-twisting strips with the resilience function arranged on the two sides of the cable body; the whole cable has stable and reliable structure, and simultaneously has the performances of anti-interference, fire resistance and aging resistance, and long service life.

Drawings

FIG. 1 is a building anti-aging cable according to the present invention;

wherein, 1, supporting the framework; 101. a separator; 2. a cable core; 21. mica tapes; 22. an insulating layer; 3. cable paste; 4. an inner sheath; 5. a shielding layer; 6. a flame retardant layer; 7. a waterproof layer; 8. a pressure resistant layer; 801. an inner anti-pressure ring; 802. a buffer body; 803. an outer anti-pressure ring; 9. a wear layer; 10. an outer sheath; 11. and (5) untwisting the strips.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

It should be noted that, in the description of the technical solutions of the present invention, directional terms used for clearly describing technical features of the present invention, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., are all in accordance with the orientation of the drawings of the present invention.

Examples

As shown in fig. 1, the anti-aging cable for building of this embodiment, including the cable body, the cable body includes four cable cores 2 and from interior to exterior in proper order the cladding is at inner sheath 4, shielding layer 5, waterproof layer 7, anti-pressure layer 8, wearing layer 9 and oversheath 10 in four cable core 2 outsides, and every cable core 2 all includes the conductor (not marked in the figure), the conductor outside has mica tape 21 around the package, and the mica tape 21 outside has insulating layer 22 around the package, and insulating layer 22 adopts the structure among the prior art can, and no longer the description here. The inner side of the inner sheath 4 is further provided with a supporting framework 1, the supporting framework 1 comprises two streamline-shaped separation sheets 101 which are arranged in a cross mode, specifically, the separation sheets 101 are made of rubber materials, and two ends of each separation sheet 101 are respectively abutted to the inner sheath 4. The cable has the functions of supporting and separating the cable core 2, and meanwhile, the structural strength and the pressure resistance of the whole cable can be improved; and the separating plate 101 adopts an S-shaped structure, so that the buffering and pressure-resisting effects can be further improved. The four cable cores 2 are placed in four cavities surrounded by the supporting framework 1 and the inner sheath 4 in a one-to-one correspondence mode, the cable cores 2 are placed in a separated mode, and mutual interference between the cable cores 2 can be avoided. In addition, the gaps among the inner sheath 4, the supporting framework 1 and the cable core 2 are filled with the cable paste 3 for preventing moisture from entering the interior of the cable body, and meanwhile, the cable paste 3 also has the function of mechanical buffering,

two symmetrical back-twisting strips 11 are axially extended on the cable body, and the cross section structures of the back-twisting strips 11 are of convex structures. The wide end of the convex structure of the back twist strip 11 is positioned at one side close to the cable core 2, and the outer surface of the narrow end of the back twist strip 11 and the outer surface of the outer sheath 10 are positioned at the same cambered surface. The cooperation is provided with the mounting groove on the cable body, moves back and turns round 11 cooperations of strip and install in above-mentioned mounting groove, and because move back and turn round 11 adoption convex character type structures, can strengthen with being connected of cable body closely spent and the reliability. The back twist strip 11 is for having elastic silica gel strip, adopts this kind of structure can improve the resilience and the antitorque commentaries on classics performance of whole cable body for the cable body can automatic recovery after receiving torsional force and taking place the distortion or buckling, avoids the cable to continuously keep the torsional state and causes the damage to the inside structure of cable. Particularly, in this embodiment, a memory alloy wire or a galvanized steel anti-drawing wire (not shown) is disposed in the silicon rubber strip along the axial direction, so as to further improve the torsion resistance and the tensile resistance.

The anti-pressure layer 8 in this embodiment includes an inner anti-pressure ring 801, an outer anti-pressure ring 803 and a plurality of buffer bodies 802 distributed at intervals and connected between the inner anti-pressure ring 801 and the outer anti-pressure ring 803, the inner anti-pressure ring 801 and the outer anti-pressure ring 803 are coaxially arranged, the cross-sectional structure of the buffer bodies 802 is a splayed structure, the narrow end of the splayed structure is connected with the outer anti-pressure ring 803, and the wide end of the splayed structure is connected with the inner anti-pressure ring 801. By adopting the structure, the buffer body 802 with the splayed structure can play a role of buffering pressure through deformation, and meanwhile, the buffer body 802 with the splayed structure can conduct pressure to different positions on the inner pressure ring 801 to buffer and decompose the pressure, so that the damage of the pressure to the inside of the cable is avoided.

The inner sheath 4 and the outer sheath 10 of the embodiment are both made of composite materials of silicone resin and glass fiber, and are firm, wear-resistant, strong in compression resistance and ageing resistance, and capable of greatly prolonging the service life of the cable. The wear-resistant layer 9 is a polyvinyl chloride wear-resistant layer, and the shielding layer 5 is formed by weaving aluminum alloy wires. And a flame-retardant layer 6 made of polyethylene with stable chemical properties and good fireproof and flame-retardant effects is arranged between the shielding layer 5 and the waterproof layer 7. The waterproof layer 7 consists of a water-blocking tape wrapped outside the flame-retardant layer 6 and an aluminum-plastic tape wrapped outside the water-blocking tape.

According to the anti-aging cable for the building, the cross-shaped streamline support framework 1 is matched with the compression-resistant layer 8 structure which is ingeniously designed, so that the compression resistance of a cable body can be greatly improved; the torsion resistance of the cable body can be improved through the back-twisting strips 11 with the resilience function arranged on the two sides of the cable body; the whole cable has stable and reliable structure, and simultaneously has the performances of anti-interference, fire resistance and aging resistance, and long service life.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an ageing resistance cable for building which characterized in that: the cable comprises a cable body, the cable body includes four cable cores (2) and from interior to exterior in proper order the cladding at inner sheath (4), shielding layer (5), waterproof layer (7), anti-compression layer (8), wearing layer (9) and oversheath (10) in four cable cores (2) outsides, inner sheath (4) inboard still is equipped with supporting framework (1), supporting framework (1) includes streamlined parting bead (101) that two crossovers set up, four cable core (2) one-to-one is placed in four cavities that supporting framework (1) and inner sheath (4) enclose, the back strip of twisting (11) that is provided with two symmetries along axial extension on the cable body, the cross section structure of back strip of twisting (11) is protruding style of calligraphy structure.

2. The anti-aging cable for buildings according to claim 1, characterized in that: the separating sheet (101) is of an S-shaped structure, and two ends of the separating sheet (101) are respectively abutted against the inner sheath (4).

3. The anti-aging cable for buildings according to claim 1, characterized in that: the wide end of the convex structure of the back-twist strip (11) is positioned at one side close to the cable core (2), and the outer surface of the narrow end of the back-twist strip (11) and the outer surface of the outer sheath (10) are positioned at the same cambered surface.

4. The anti-aging cable for buildings according to claim 3, characterized in that: the untwisting strips (11) are elastic silica gel strips.

5. The anti-aging cable for buildings according to any one of claims 1 to 4, wherein: the pressure-resistant layer (8) comprises an integrally formed inner pressure-resistant ring (801), an outer pressure-resistant ring (803) and a plurality of buffer bodies (802) which are connected between the inner pressure-resistant ring (801) and the outer pressure-resistant ring (803) and distributed at intervals, wherein the inner pressure-resistant ring (801) and the outer pressure-resistant ring (803) are coaxially arranged, the cross section structure of the buffer bodies (802) is of a splayed structure, the narrow end of the splayed structure is connected with the outer pressure-resistant ring (803), and the wide end of the splayed structure is connected with the inner pressure-resistant ring (801).

6. The anti-aging cable for buildings according to claim 5, characterized in that: the shielding layer (5) is formed by weaving aluminum alloy wires.

7. The anti-aging cable for buildings according to claim 6, characterized in that: and a flame-retardant layer (6) made of polyethylene is arranged between the shielding layer (5) and the waterproof layer (7).

8. The anti-aging cable for buildings according to claim 7, wherein: the waterproof layer (7) is composed of a water-blocking tape wrapped on the outer side of the flame-retardant layer (6) and an aluminum-plastic tape wrapped on the outer side of the water-blocking tape.